Home / 2,889.23-3,987.14-1,562.94

Finding the Fourth Proportional to 2,889.23, 3,987.14 and 1,562.94

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Solution

The fourth proportional to 2,889.23, 3,987.14 and 1,562.94 is: 2,156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.23 : 3,987.14 = 1,562.94 : x
  2. Step 2: Convert to fraction form
    2,889.23/3,987.14 = 1,562.94/x
  3. Step 3: Cross multiply
    2,889.23x = 3,987.14 × 1,562.94
  4. Step 4: Simplify right side
    2,889.23x = 6,231,651.16
  5. Step 5: Solve for x
    x = 6,231,651.16/2,889.23
  6. Step 6: Final answer
    x = 2,156.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.